Improvement in inhaling and fumigating apparatus



.. E. c. KIRKWOOD. Improvement in lnhal ing and Fumigating Apparatus Z W, a

Patented Ju ne 4,

-/m Mara-un/aeMM/c mm. {yum/v58 Havesss.)

Fiizzesses:

UNITED STATES PATENT OFFICE.

EDWIN O. KIRKWOOD, OF WASHINGTON, DISTRIOTOF COLUMBIA, ASSIGNOB OF TWO-THIRDS OF HIS RIGHT TO DANIEL OARRIGAN AND ELMON A.

ADAMS, OF SAME PLACE.

IMPROVEMENT IN INHALING AND FUMIGATING APPARATUS.

Specification forming part of Letters Patent No. 127,420, dated June 4, 1872.

Specification describing certain Improvements in Inhaling and Fumigating Apparatus, invented by EDWIN O. KIRKWooD,

of the city of Washington, District of Oolumdestroying moths and other insects; and it consists of an outer chamber, vessel, or flask, provided with a handle, and having five, more or less, necks or openings for the reception of smaller chambers and for the passage of communicating tubes, and in two or more chambers or cups constructed to fit accurately the openings of the outer vessel, a series of tubes connecting the several chambers, and tubes for the admission of air, together with an inhaling-tube or mouth-piece and blow-tube, all combined as hereinafter set forth.

In the drawing referred to in this specification, Figure 1 is a perspective view of my improveddevice. Fig. 2 is a vertical section on the line :0 no of Fig. 1. Fig. 3 is a vertical section on the line y y of Fig. 1.

Like figures refer to like parts in the several figures.

close seat for the smaller chambers B B. B B

are two smaller chambers or vessels,. made to fit the two larger openings in the chamber A. It is immaterial whether the chambers B B be made separate from the chamber A and set in, as described, or molded therewith of suitable material. The two chambers B B are closed by corks or suitable caps O 0. Each cork or cap 0 is perforated at two points for the passage of tubes 1) and c. The three smaller openings or necks of chamber A are also provided with closely-fitting corks or caps, which are likewise perforated for the passage of tubes.

11 b are small bent glass tubes passing through the corks of two of the smaller openings or necks of chamber A, and connecting the chambers B and A. These tubes pass to near the bottom of chamber A. c 0 are two short tubes passing through the corks O O, and serve for the admission of air into the chambers B B. d is a small tube or mouth-piece, which may be made of rubber, bone, glass, or other suitable material, and may be provided with a valve to prevent the reflux of the breath. This tube passes through cork D into chamber A. F is a tube for forcing a current of air into chamber B through tube 0, and is attached to tube 0 when the apparatus is used as a fumigator or for the local application of medicated fumes or vapors. An elastic bulb may be attached, if desired, for forcing the current of air through tube F. The vessel A may be provided with a handle, E, if desired.

Operation.

The outer vessel or wash-chamber Ais filled about one-half or two-thirdsfull of fluid. The chambers B B are supplied one with an acid and the other with an alkali or base, or with articles which unite or combine to form an anhydrous gas. In using the apparatus as an inhaler the patient applies the mouth to tube at and inspires. This creates a vacuum in chamber A which is filled by an inflow of air through tubes 0 0 over the chemicals in the chambers B B and through the bent tubes I) b to supply the place of the air exhausted from chamber A. This air, in its passage through the chambers B B, takes up the fumes or vapors from .the chemicals, which pass through the tubes I) b, and unite in chamber A to form the desired gas, which is washed and medicated in its passage through the liquid in chamber A, and is inhaled through the tube or mouth-piece d.

When this apparatus is used as afumigator or for the local application of medicated fumes, tube F is placed upon tube a leading to the acid-chamber and a current of air forced over the acid through bent tube 1) into the medicated fluid in chamber A, from whence the fumes or vapors can'be directed through tube d to the desired point.

Having thus clearly described my invention, 2. The combination of tube F with chambers I claim A and B, and tubes b, c, and d, as and for the 1. An outer or wash-chamber provided with purpose herein set forth.

openings for the passage of bent tubes 1) b and v EDWIN C. KIRKYVOOD.

inhaling-tube d, in combination with the cham- Witnesses bers B B, as and for the purpose herein set DL. OARRIGAN,

forth.

TIIAD. K. SAILER. 

